Studying Blood Samples From Women With Breast Cancer or Ductal Carcinoma In Situ Who Are Receiving Tamoxifen
Status:
Completed
Trial end date:
2011-07-01
Target enrollment:
Participant gender:
Summary
RATIONALE: Studying samples of blood from patients with cancer in the laboratory may help
doctors learn more about differences in DNA and predict how well patients will respond to
treatment and plan better treatment.
PURPOSE: This clinical trial is studying blood samples from women with breast cancer or
ductal carcinoma in situ who are receiving tamoxifen.